Artificial joint replacement surgery for bone tumors has many advantages, such as good stability, early functional exercise and weight bearing; easy acceptance by patients; and rapid functional recovery and good recovery. However, problems associated with it, such as infection, complications related to the implant, and aseptic loosening, limit the longevity of the prosthesis to some extent, and there is an increasing risk of revision over time, especially in patients with immature bone tissue. Bone lengthening techniques for the treatment of bone defects after bone tumor resection are generally used for stage IIB malignant bone tumors that are sensitive to chemotherapy and can be treated with attempts at limb preservation, as well as for poorly differentiated or progressive primary bone tumors. Bone lengthening is considered to ensure that the active bone tissue can withstand external forces, remain biologically active, and, once successful, achieve long-term stable results. The advantages of bone traction include inducing regeneration of the bone structure and providing adequate strength and durability, good biological properties, resistance to infection, and long-lasting functional recovery. The disadvantages include a high incidence of delayed healing, susceptibility to infection of the pinhole or pin tract, and the lengthy duration of the entire treatment process. It is generally accepted that complications can be treated with appropriate measures, while restoration of limb function can be beneficial for life without fear of loosening or revision. For this group of patients, it is particularly important to discuss the restoration of function in order to facilitate social and economic planning during the long recovery process. Although time-consuming and labor-intensive, bone traction is the only reconstructive treatment option that can provide good long-term function and can preserve the limb in a functional sense.